Towel hook



FIG. 1 is a perspective view of a towel hook showing my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a front view elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a rear view thereof.

The ornamental design for a towel hook, as shown and described.